Latch mechanism



NOV. 2.4, 1931. Q DlcKERsON 1,833,209

LATCH MECHANISM v Filed May 2l. 1929 |NvENToR ATTORNEY Patented Nov. 24, 1931 Application mea `May 21V,

door frame of the-car; Usually nojlock and key means is provided in such places vbut provision is made to attach a seal somewhere on the latch mechanism "after the YdoorV is closed which must be broken orfopened .be-

Y :29 fore the door can be opened."

These seals are made of resilientmaterial and in Aopen loop form, normally open, `and are closed against the actionof'tthe resiliency therein after'they are insertedjin theclosed `25 latch mechanism, usually Ahavinga catch means to hold them in' closed position, and

lone of the ends of the sealsis then bent over the other end to retain the sealin closed posi- Ation. ,f

y The seal is made of material which'permits ofone bend but will break if it is bent'inthe opposite directionat the same point.VV There; fore, if a closed end yof the seal is bent back,

or it the seal is cut at any place, the resiliency in the seal material at once opens ythe cutgror break and shows at a glance of the inspectors f or police that the latchmechanism has been tampered `withsothat an inspection of the 40 contents of the car can bemade to see whether.

or not any goodshave been removed and, if`

any have been removed, to start tracing the same beforethe car is movedl toa more jre-.

mote place. v n v In previous latch mechanismsgitisffpos sible to 'force members of 'the mechanism apart, by breaking oil boltheads' or'other parts,"and thereby release the latch mecha@` l nism without disturbing the seal and thereby;

59' make-it appear that therdoor had Vnotjb'een Y pin-j morez clearly.

. opened although it may' have, in fact, been .p

opened.`

Tha present invention aimsjto eliminate `all A projectin'g Abolt nheads and othenparts ,l whichfmay afford 'an lopportunity for' ,open-` 5'5 ingfof"Y the latch mechanism without opening* l. thesealgff f 1j For illustration purposes and notforlimitation purposes, the invention illustrated in the accompanying'. drawings",injone type of; mechanism andthislone' typeV is speciic'ali ly described V in this 'specilication.`

Injthe accompanying drawings l isa side view offa latchmechanism j embodying my invention. t "ff Fig. 2 is an end viewf taken from the end" X Cling. 1. .y f q Eig; Sisalsectiontaken in a'fp'lane indi l cated byth'eline -infFig. y1 showingfthe bolt head concealing and the shoulderedconf im cealed catch rbolt supporting pin Q more clearly. Figxlfis a'section taken in a plane indicatedl by the line in Fig. 1 showing the pocket andconcealed latchbolt supportingl Flgn f s a section takenfin piane indi;

catedbyf. thefline15e-,5V infFig Qjshowingpa v fnl .v Seal apphedfto twoj'relativelymovableiinem;4 .Y ,86.1

`beISyV n p Y. 1 Similar, reference characters refer toV sim#Y ilar partsfthrughout the views;

' The mechanism shown 'in' the drawingf's l comprises', principally, the ,bracketsfA and y B,lthec'a`tchand latch bolts@ an'dvD,l and the Vlatch bolt supporting pins E andfF.' j 'The bracket Ahasthe'twowalls 'and `11 with the countersu'nk` holes 'l2 .through the wall 10 soy that liat headscrews "or bolts can be used to eliminate the possibility of break#A ed ingoflrlutting ofi' thefbolt hfeadstol release the latch mechanism@ Th'ej'w'allgll hastheVV catch Abolt hole 13 through the same,ffafnd Aalso" same,"and also has the pocket lff',

'lfhewalls ofthefbra'cket A are stiiienedby the vrib,v r16 to Vprevel'lt Y the 'f walls from.: being bent .out of position. i n Y l i the AWfl-11.17 with ith@ L Vbolt holes 18 through the same' and c'zunterljl 100 has the seall receiving h le 14k through Y.

The bracketB has sunkV so that liatheadV or countersunk .head bolts orV screws can-.be used to fasten the Which is'open at the bottom.

Y* extending'int the Y slt'21 through the bracket-onto a support so that bolt heads can not be chipped off orvrbroken oli' easily.Y The bracket" B also has thefpocket VV19 The catch bolt C has the bodyipoi'tion 2O ody portion. The catch bolt C also has the nose 22 with the seal receiving hole 23 throughg'tghejime -andgin alinement With the" seal receiving hole 14:A

' when' all of the members vare inlatching "'pOStOll- V'I'hercatch bolt suspension pin Eextendsj. throughgthe.V Wall 11 and theiwall 24: and. ftr'aver'sesthe pocket l15'. `The` body portionl ,25V of the, pin E t extends ,through the 'slot-21 andthe. diametrically reducedfportio 26 extends into the VWall, lllso that ythe shoulder '27abut's; the Wall 1.1.: The .part 28 ofthe,

pin'v is riveted into the vcountersunk holes in .the wall`24 and the part 29j of the 4pinEV is Arivetedinto the countersnnk'hole'y in the wall 11. Q This pin mounting lfeliminatesf all bolt headsfoiiV other'y projections lfrom. thek outsidel 'ofV the bracketA so. thatl the pin'- cannot be removedttofeffect anunlatchingof the latch members, .The formation of the pocket v15 also prevents the member C from Vbeing. re-

" vcln'oved; from the mechanism.. Y l

f 1-The latch boa ihe'wan, 11

with-theslot 31 through'the :same and extendinginto the `pocket]19and also has .the

"nose'f32 extendable vthroughthe hole Vlirfin and' also has the holey 33 for the nose 22.

suspension F lextends v v .through Vthewalls 17 and V34and{travgerses 40.** c .A Y 'E extends through the solt 31'in thevpart 30j Y and'hasrthe shoulder 36 abuttingtheVvvall '17;

the Pocket 19,., The part of the pinF The partez of thel Lpian isirivaed-int the :iounters'ilnkl hole lin the.l Wall 3,21; 'The-'dianietrically reduced portion 38 of the'pin'lfj` extends through the'wall; 17 and isriveted finto the countersunk liolefinfthe wall '717.'` Y Thiscountersunk structureA eliminates all boltl heads or. other pro-jectingrpa'rts .which could'v easily be chip-pedo'r broken o., Y

' "'llhe"V bracketsVv 'A' and Bfare. fastened tothe door iframe; `and Y th'e doorfr thereof by means of flathead Yor countersunk headl screvvs `ror bolts f ez/ftendingl through f vthe f holes 12 and 18 and are.' spaced orlocated in such relation to each otherthat the nose. 32 of the latch boltD canVA bel extended through thezgfhole 13 inthe' wann 'of the bracket 'Ac-andthe! nose 1frfgjthtcatch bolt 5C, Cani hangende@ through lthe hole 331m the nosec'r'32,"irziilshe` j-E'Ihe seal Grfisextendedthroughtthe*holes and 23'7Whenfthe latch-members, are in.

latchinglposition and then .locked the gocket 15' and' having the'.

v The ,latch bait nha'sthe-boayfpitupeo vAs shoWn'in'the drawings the members are inlatching position with the seal-*Gapplied Y as best seen in F ig. 5.'

In order to unlatch the members. thefseal vGr must `lirst be removed insome manner before the catch bolt C canV be `moved since thelsealrG also extends through thejposi- 'tionally fixed Wall 11 andthereby prevents 'the catch boltC from being moved runless the'seal is first removed. v

R.ffAfter'thesealisjremoved the member C can be moved'longitudinally and isv guided ontleipi'n E and on thewall 11 until'the end -Yof the nose 22 thereo'is clear of the nose 32fon-the'latchfbolt D the slot 21 per- 'Alfter the :so moved; thelatcliz bolt l) can be, movedlongitudinally through the` hole 13 and ,clear of the Wall lll-,Wherrlnipmittingthe longitudinal ,movementot the ff .memhevlGx c I .c Y

on the bracket 'A andthe mechanism there-V on and vthejbracket'B 'andthe mechanism,

thereon are clear of'each other :and the mem-v bers upon Awhich the bracketsfA'and B are fastened c'anmover in relation to each other.

The slot 231k permitsithe longitudinalmovenient of the latch bolt Don the pin F.' Y 1 lIn order to latch the members, the latch bolt D is first moved longitudinallycwith the nose `32-through the` hole 13; The catch bolt C is thenjmoved longitudinally until the nose, 22y extends l through the hole 33 -andtuntil thef holes 23andl4are in alinement-` fTh'e:

`formation of thelpo'cketf 19h-y the',v'vall'sl321VV and V17 forms'a substantialsupport*for the'.

pin "F and prevents the same from; being removed. 'Ihe pocket 19 isfclosed atrthetopr' and openKY at `the 'bottomffto preventfce or the likefrom forming, in the pocket.` Y

cThevz'tpparatus shown and described prof The formation of the pocket 'l'llprovides' vides a simple and easily operable latch mechanism Vrwhich the mechanism 'can notv be tampered4 'and' can not be 'unlatchedL without openingtlie seal."

tions canbe made in--the appara-tus "asa-a 1 Whole and in the structure and Y arrangement' of the parts -thereof withinIthel'scope lofftlief appendedl claims; therefore,Vv without: limiting myself to the Vprecisevv apparatus sho-Wn andi-described norV to ithe precise structure A,Mldeura'ngement of part-s as shown and de-A scribed', Y

I claim :--y -c I Af Vlatch Y mechanism including a bracket izof havinga latch-bolt'receiving; hole and a seal receivingjhole through; the same; a catch bolt movably supported on said hracketand hay# anose; andaseal'receiving hole. through the same located to aline Withthe seal receiv- V ing hole in the bracket when the mechanism is in latching condition, a bracket adjacent to the first said fbracket,'and a latch bolt `mova- 5 bly supported on said adjacent bracket and having a nose extendable through said bolt receiving hole and having a bolt receiving hole for the nose of the catch bolt to extend' through for latching the mechanism. 2. A latchtmechanism including a bracket having a latchvbolt receiving hole and a seal Y d receiving hole through thesame, a catch' bolt movably supported on said bracket and having a nose and a seal receiving hole through the same located to aline with the first saidV seal receiving hole when the mechanism is in latching condition, a bracket having a pocket therein, and a latch bolt movably supported on said bracket with the pocket and extending v Y ing a nose and a seal receiving hole through the same and located to aline with the iirst said seal receiving hole when the mechanism is in latching condition, abracket having a pocket therein, a movablelatch bolt extending into said pocket and havinga nose extendable through said bolt receiving hole and having a bolt receiving hole `for the Anose oi" said catch bolt to be extended therethrough for latching the mechanism, anda support means for said latch bolt extending through 40 said bracket with the pocket and through said pocket and through said latch bolt and having a head on each end thereof each countersunk into said bracket with the pocket.

4. A latch mechanism including a bracket having two angular walls and rib means to' stiifen the same, one of said walls having a latch bolt receiving hole through `the saine adjacent to said rib means, a bracket having 5 a pocket therein, a catch bolt movably supa nose, a movable latch bolt extending into said pocket vand having a nose extendable through said bolt receiving hole and having a bolt receiving hole for the nose of said catch bolt to be extended therethrough for latching latch bolt 'extending through said `bracket with thev pocket and through said pocket and through said latch bolt and having a head on each end thereof each countersunk into said 1 bracket withthe pocket. n

5. A latch mechanism including a bracket having two angular walls'and 'rib means t0 stilen the same, one ofsaid walls having a latchibolt receiving hole and a seal receiving hole through the sameadjacent to said rib Y means, a 'bracket' having. a pocket therein, a catch bolt movably supported on the rst's'aid bracket and having anose and a seal receiving holethroughk the same located to aline* with the seal receiving hole in said one wall [when the mechanism is in latching condition,

a umovable latch bolt extending into said pocket and 'having a nose extendable throughV said bolt 'receiving hole and havingaybolt receiving hole.for`lthe'nose of said catch bolt to be extended therethroughfor latching ofV 4the'mech'anism, and a support pin for said latch bolt extending through'said bracket withthe pocket andextending through said Vpocket and through said latch bolt and hav-` ing a head on each endthereof each countersunk into said bracket'with the pocket, 621A latch mechanism including bracket means and interengageable latch bolt means carriedV vby said bracket means and a latch bolt supporting meansincludingja pin ex- Y `tending through spaced walls Vof a bracket and through a latch bolt between said walls l Y and having a head on each end thereof each countersunkl into ,the correspondingr one of said walls and'havinga shoulder-thereon abutting the inner one of said walls.

7. A latch'mechanismgincluding a bracket `having a seal receiving hole through the same,` a latching member carried `bysa'id bracket and extendablek through another latching member of the mechanismandhaving a seal receiving hole through onefend and both of said holeslocated so that the same latching member. i

In testimony of the `foregoing, I "V l Veleonora nroxnnsoipf 'f n signature.

ported on the lirst said bracket and having Y of the mechanism, and a support pin for said eoY thereof beyond the other latchingfmembengl0n lwill come into alinement When the one latch@ 'l ing member is extended ythrough the other,l 

